1

Contents

Introduction.............................................................................................................................................................................................................................2

System Requirements.....................................................................................................................................................................................................2

Register Forte Suite™ ...................................................................................................................................................................................................2

Working with Forte Suite™ .......................................................................................................................................................................................2

Accuracy...............................................................................................................................................................................................................................2

Copyright .............................................................................................................................................................................................................................2

Installation.................................................................................................................................................................................................................................3

Installing the Forte Suite™ ..........................................................................................................................................................................................3

Authorizing the Forte Suite™....................................................................................................................................................................................3

Removing Expired Plug-Ins...........................................................................................................................................................................................3

Forte Suite™ Parameters..................................................................................................................................................................................................4

Parameter adjustment ....................................................................................................................................................................................................4

Table of module variants and sections....................................................................................................................................................................4

Input/Output Section...........................................................................................................................................................................................................4

EQ ................................................................................................................................................................................................................................................5

Parametric EQ ...................................................................................................................................................................................................................5

Shelving .................................................................................................................................................................................................................................5

Low and high pass filters ...............................................................................................................................................................................................5

Compressor.............................................................................................................................................................................................................................6

Dynamics...................................................................................................................................................................................................................................8

De-esser ...............................................................................................................................................................................................................................8

Filters .....................................................................................................................................................................................................................................8

Gate........................................................................................................................................................................................................................................9

DSP Requirements..............................................................................................................................................................................................................10

Monitoring DSP Usage.................................................................................................................................................................................................10

Forte DSP Requirements............................................................................................................................................................................................10

DSP Delays Incurred by TDM Plug-Ins......................................................................................................................................................................10

Forte DSP Delay.............................................................................................................................................................................................................10

2

Introduction

Congratulations on your purchase of the ForteSuite™™ plug-in for Pro Tools|HD, HD Accel or LEsystems, brought to you by the Focusrite team – Ian,Trevor, Peter, Martin, Tom, Mick A’C, Phil, Nick,Chris G, Micky, Pauline, Melissa, Chris W, Rob J Snr,Simon J, Vernon, Giles, Rob J Jnr, Mick G, Tim, Dave,Paul and Simon.

The Forte Suite™ is a high-quality EQ and dynamicsplug-in that provides critical control over your audiosignals.

The Forte Suite™ is a real-time TDM and RTAS plug-in with the look and sound of Focusrite’s original ISA110 and ISA 130 modules.

The Forte Suite™ provides support for 192 kHz,176.4 kHz, 96 kHz, 88.2 kHz, 48 kHz, and 44.1 kHzsessions.

The Forte Suite™ provides support for multi-monoand stereo formats. In addition, the ISA 130compressor is available for all Pro Tools-supportedmultichannel audio formats.

Your Forte Suite™ plug-in package contains thefollowing:

− Installation CD-ROM− License Card for authorizing the plug-in with an

iLok Smart Key (not supplied)− The Forte Suite™ Plug-In Guide (electronic PDF

guide)− Registration Card

System RequirementsTo use the Forte Suite™, you need:A Digidesign-qualified Pro Tools|HD, HD Accel or LEsystem– or –A Digidesign-qualified Pro Tools|HD, HD Accel or LEsystem and a third-party software application thatsupports the Digidesign TDM, RTAS or Audiosuiteplug-in standard

For the latest compatibility information, contact yourlocal Digidesign dealer or visit our website(www.digidesign.com/compato).

Register Forte Suite™Make sure to complete and return the registrationcard included with the Forte Suite™. Registered userswill receive periodic software update and upgradenotices. Please refer to the registration card forinformation on technical support.

Working with Forte Suite™Refer to the Pro Tools Reference Guide, the DigiRackPlug-Ins Guide, or the electronic PDF copy of theDigidesign Plug-Ins Guide for information on workingwith plug-ins, including:

− Plug-Ins as Inserts− The Plug-In Window− Editing Plug-In Parameters− Automating Plug-Ins− Using the Librarian

AccuracyWhilst every effort has been made to ensure theaccuracy and content of this manual, Focusrite AudioEngineering Ltd makes no representations orwarranties regarding the contents.

Copyright© 2003 Focusrite Audio Engineering Ltd. All rightsreserved. No part of this manual may be reproduced,photocopied, or be transmitted / passed to a thirdparty by any means or in any form without theexpress prior consent of Focusrite Audio EngineeringLtd.

DIGIDESIGN, AVID and PRO TOOLS are trademarksor registered trademarks of Digidesign and/or AvidTechnology, Inc. All other trademarks are theproperty of their respective owners. All features andspecifications subject to change without notice.

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Installation

Installing the Forte Suite™To install Forte Suite™, use the Installer CD-ROM.

To install the Forte Suite™:1. Insert the Installer CD-ROM in your CD-ROM

drive and double-click the Installer.2. Click Install.3. When installation is complete, click Finish

(Windows) or Quit (Macintosh).

When you open Pro Tools, you will be prompted toauthorize the Forte Suite™.

Authorizing the Forte Suite™The Forte Suite™ plug-in is authorized using the iLokUSB Smart Key from PACE Anti-Piracy. The iLok issimilar to a dongle, but unlike a dongle, it is designedto securely authorize multiple software applicationsfrom a variety of software developers.

One iLok USB Smart Key is included with your HDCore system. This key can hold over 100authorizations for all your iLok-enabled software.Once iLok is authorized for a given piece of software,use iLok to authorize that software on any computer.

The iLok is authorized using License Cards that have asmall punch-out GSM plastic chip. License Cards arespecific to each plug-in. You will receive theappropriate License Cards for the plug-ins that youpurchase.

To authorize Forte Suite™ with iLok:1. Insert the iLok into an available USB port on your

computer.2. Launch Pro Tools. You will be prompted to

authorize the Forte Suite™. If you are alreadyusing a demo version of the plug-in, launch ProTools before you insert the iLok, then insert theiLok into any available USB port when promptedby Pro Tools.

3. Follow the on-screen instructions until you areprompted to insert the License Card into theiLok.

4. Separate the License Card — the smaller GSMcutout — from the larger protective card bypulling the cutout up and out with your thumb.Do not force your finger downward.

5. Insert the License Card into the iLok. Visuallyverify that the License Card makes contact withthe iLok’s metal card reader.

6. Follow the on-screen instructions to completethe authorization process.

7. After authorization is complete, remove theLicense Card from the iLok. (If you have toremove the iLok to remove the License Card, besure to re-insert the iLok in any available USBport on your computer.)

Removing Expired Plug-InsIf you let a demo version of a plug-in expire, youshould remove it from your system. Otherwise, eachtime you open Pro Tools you will be prompted with amessage that the plug-in has expired.

To remove an expired plug-in (Windows):1. From the Start menu, choose Settings > Control

Panel and double-click Add or Remove Programs.2. Select the expired plug-in from the list of installed

applications and click the Change/Remove button.3. When removal is complete, click OK to close the

window.

To remove an expired plug-in (Mac OS X):1. Open the Plug-Ins folder or Plug-Ins (Unused)

folder on your Startup drive (Library/ApplicationSupport/Digidesign).

2. Drag the expired plug-in to the Trash.3. Empty the Trash.

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Forte Suite™ Parameters

The Forte Suite™ features the ISA 110 (EQ) and ISA130 (dynamics) in various arrangements, and boasts anindividual compressor module capable of any surroundconfiguration up to 7.1 surround, for quality analogueprocessing in the digital domain. An extremely highlevel of design sensitivity means that all the dynamicand real time sonic characteristics of the original ISAchannel strips are accurately replicated in the ForteSuite™ plug-in.

Parameter adjustmentThere are a variety of options available whenmodifying parameters within the Forte Suite™:

Dial RotationClicking on the dial (and holding) will allow anadjustment to be made. Subsequent movement on thescreen will modify the value; upwards movementincreases and downwards movement decreases thevalue. This value will be displayed in red at the base ofthe dial as an adjustment is made. NOTE - Holding‘Alt’ and clicking on a dial will set it to a 0(default) value.

Numeric typingAs the mouse cursor moves over a dial, its value isdisplayed in a text box underneath. Clicking on thisbox will enable an exact value to be entered using thekeyboard.

Graphical controlThe various graphical displays show the action of theEQ and dynamics, and also allow control of some ofthe parameters. Clicking on the crosses (and holding)will enable a value to be modified. The correspondingvalue(s) will appear in red at the base of the relevantdial(s) when an adjustment is made.

Table of module variants and sections

Modulevariants

I/O EQ COMP DYN(De-esser/Gate)

ISA 110 � �ISA 130 � � �ISA 110:130 � � � �ISA 130:110 � � � �ISA 130c � �

Input/Output Section

Every module variant in the Forte range features an input/output section, as shown above. All 130c multichannelvariants contain extra metering to account for the additional channels. The ISA 130c multichannel variants have bargraphs for all channels but only one Input/Output level control, which adjusts all channels equally.

Input and Output dialsThe two dials to the left of the bar graph meters allow the user to control the level of gain at the input and output ofthe module. The accessible gain range is –18dB to +18dB for both dials, with 0dB selected when the dial pointsvertically upwards (in the centre).

MetersThe vertical bar graph meters indicate the level being fed to the input and output of the module, and the action of thecompressor and/or gate when present. They display a range from –40dBFS up to 0dBFS for I/O, and up to 20dB forcomp/gate. For surround variants with five channels or more, a in/out switch alternates between showing input andoutput levels.

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EQ

The 110 EQ module comprises of three sections: HMFand LMF parametric EQ (left), high and low shelving(right), plus low and high pass filters (bottom).

Parametric EQThe left section features two separate bands ofparametric EQ; high-mid and low-mid, both with aboost/cut dial from –16dB to +16dB, a frequencysweep control covering two ranges and fully variableQ. The upper band covers the range 600Hz to 6kHz(1.8kHz to 18kHz when x3 is pressed) and the lowerband ranges from 40Hz to 400Hz (120Hz to 1.2kHzwhen x3 is pressed).

Param Eq InWhen the ‘Eq In’ switch is pressed and illuminated, theparametric EQ is inserted into the signal path.NOTE - If the ‘All Eq’ switch below the shelving panelis not illuminated, then only the Input/Output controlsand the Phase switch will be functional. (See ‘All Eq’explanation below for further details.)

x3The sweep controls have two ranges, the higher beingselected when the x3 switch is pressed (x3frequencies are shown in yellow on the panel).

ShelvingHigh and low frequency-shelving sections are availablein the right-hand side of the section, each with aboost/cut dial from –16dB to +16dB, and a frequencyselect dial which rotates either in steps (default) orcontinuously (see ‘Switch’ explanation below). Thehigh frequency selection ranges from 3.3kHz to 15kHzand the low frequency selection ranges from 33Hz to270Hz.

Shelving Eq InWhen the ‘Eq In’ switch is pressed and illuminated, theshelving is inserted into the signal path.NOTE - If the ‘All Eq’ switch at the bottom of theshelving panel is not illuminated, then only theInput/Output controls and the Phase switch will befunctional. (See ‘All Eq’ explanation below for furtherdetails.)

SwitchWith ‘Switch’ illuminated (default), the frequencyselection dials rotate in the steps indicated on thepanel, as on the original ISA 110; 3.3kHz, 4.7kHz,6.8kHz, 10kHz, 15kHz for the high shelving, and 33Hz,56Hz, 95Hz, 160Hz, 270Hz for the low shelving.Deselecting ‘Switch’ will make the frequency varycontinuously from the minimum to maximum values.

All EqThe module’s default setting has the ‘All Eq’ selectedand illuminated, this allows any EQ section to beactivated on the front panel controls. De-activatingthe ‘All Eq’ switch bypasses all EQ sections, leavingjust the Input/Output level controls and Phase switchactive.

Low and high pass filtersTwo dials provide full control of either low pass(upper dial) and high pass (lower dial) filters. Rotatingthe dials past the ‘off’ position will make the filteractive, and allow a continuous or stepped sweepbetween the frequencies indicated. When ‘switch’ isilluminated, the dial will rotate in steps between themarked frequencies.

SwitchWith ‘Switch’ illuminated (default), the frequencyselection dials rotate in the steps indicated on thepanel, as on the original ISA 110; 16kHz, 12kHz,8.2kHz, 5.6kHz, 3.9kHz for the low pass filter, and36Hz, 60Hz, 105Hz, 185Hz, 330Hz for the high passfilter. Deselecting ‘Switch’ will make the frequencyvary continuously from the minimum to maximumvalues.

6

PhasePressing the ‘Phase’ switch inverts the phase of thesignal. This function is still active when ‘All Eq’ isdeselected.

OverloadThe Overload LED indicates when the signal isreaching maximum level, 0dBFS.

Graphical display and controlA graph displays the EQ curve and allows operation ofgain and frequency controls for the parametric bands,shelving and filters. Clicking and dragging on one of theyellow crosses changes the parametric band values,whilst the green crosses modify shelving parameters.When the filters are inserted, they appear in red andcan be adjusted in the same way. Holding down the

Apple key when using a Mac (or the control key usinga PC) and clicking on the parametric band will allowmodifications to be made to the Q value; a left to rightmotion scrolling from wide to narrow band. Exactvalues are displayed in red at the base of the relevantdial when the curve is adjusted.

Compressor

The compressor section within the ISA 130 dynamics module

The ISA 130c (available in mono or multichannel formats)

The compressor is available in separate ISA 130cformat (in mono, stereo and all multi-channelsurround configurations) and within the ISA 130dynamics processor, as shown on the left. In ISA 130carrangements with more than one channel,compression is applied equally to all channels.NOTE - The LFE channel can be included incompression for 5.1, 6.1 and 7.1 formats by pressingthe LFE switch in the I/O section. (See ‘multichannelvariants’ section for further details.)

CompPressing the ‘Comp’ switch at the top right-handcorner of the section activates the compressor, theaction of which is indicated by the bar graph meter inthe I/O section.

ThrshThe ‘Thrsh’ (threshold) dial determines the level atwhich compression begins, with a range of –50dB to–10dB. The lower the threshold, the more the signal iscompressed. Setting a higher threshold will leavequieter passages unaffected, only passages that exceedthe threshold will be compressed. With ‘Switch’activated as default, the dial rotates through thestepped values indicated unless ‘Switch’ is deselected,when the dial will continuously rotate.

RatioThe ‘Ratio’ dial determines the rate at whichcompression is applied to a signal with increasinginput, and is the ratio of change in input levelcompared to change in output level. The control givesa range of 1.5 to ∞. With ‘Switch’ activated as default,the dial rotates through the stepped values indicatedunless ‘Switch’ is deselected, when the dial willcontinuously rotate.

Rel‘Rel’ (release) determines how quickly compression isremoved once the level of the source signal has fallenbelow the threshold. The release time begins at 0.1seconds (fully anticlockwise), which may beappropriate for rapidly varying signals to avoid

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compressing the beats that follow, but can result inexcessive distortion on more sustained material.Clockwise rotation continuously increases the releasetime, giving a smoother effect, but which at the sametime may result in transients causing audible“pumping”. The maximum release time is 4 seconds.

Atck‘Atck’ (attack) determines how quickly compression isapplied once the level of the source signal has risenabove the threshold. The attack time is fastest whenfully anticlockwise, making the compressor react tothe peak levels of the signal. This is sometimesdesirable but can cause unwanted “pumping” ofsteadier low level components of the signal, due toshort transients. Rotating the dial clockwise willincrease the attack time, causing the compressor toignore short transients and respond more to theaverage loudness of the signal.

GainAfter the overall level has been reduced bycompression, the ‘Gain’ dial allows you to increase theoutput level. 20dB of makeup gain is available.

AutoWhen the auto button is pressed, the release curveresponse is determined by the musical material andthe auto release calculation. The release rate varies tosuit the dynamics of the signal. This is especiallyeffective on complex programme material, and enablesthe use of fast attack times without incurring any“pumping” type artefacts. When auto release ispressed in the release knob can still be rotatedhowever the position and release value shown on therelease knob has no effect over the release time.

SwitchWith ‘Switch’ illuminated (default), the threshold andratio selection dials rotate in the steps indicated onthe panel, as on the original ISA 130. Deselecting‘Switch’ will make the values vary continuously fromthe minimum to maximum values.

KeyPressing the ‘Key’ switch sends the signal routed tothe key input to the sidechain of the compressor.Either an interface channel or bus can be assigned byclicking on the Key input block, located on the generic

plug-in border. This allows one or more tracks todrive the compressor, to help select the mostappropriate form of compression. When compressinga dance track for example, all tracks except for thebass could be sent to the Key input to help retainmore natural dynamics in the bass. If no specific keyinput is selected but the switch is activated, then theregular input to the compressor is used.

ListenThe ‘Listen’ switch enables the compressor’s sidechainto be audibly monitored, ensuring accurate frequencyadjustment during setup. Filters can be sent to thesidechain using the switches below the de-esser panel.(See Filters explanation in the Dynamics sectionbelow.)

Graphical display and control

A graph displaying the compressor curve is located atthe bottom of 130c variant and at the top of thegraphical strip in the 130 dynamics module. The valuesfor threshold (lower cross) and ratio (upper cross)can be modified from the graph, and appear in red atthe base of the relevant dial.

Multi-Channel VariantsIn/Out (130c: five channels or more)This switch changes the bar graph meters to displayeither the input or output levels. The modules displaythe input levels as default and when the switch isactivated (and illuminated) the output levels aredisplayed.

LFE (130c: 5.1/6.1/7.1)If the user desires the LFE channel to be compressed,then activating (and illuminating) this switch places itinto the compressor path. All channels arecompressed together.

8

Dynamics

De-esser

The de-esser section allows the user to removeexcess sibilance from a vocal performance or, inexpand mode, boost the selected frequency band.

De-essPressing the ‘De-ess’ switch inserts the de-esser intothe signal path. Essentially, this is a narrow band filter-driven compressor or expander. The dial on the right,labelled ‘Hz’, controls the frequency of the filter,ranging from 1kHz to 10kHz. The dial on the leftallows control of the compressor knee, with greatestcompression occurring when fully anticlockwise (DS/-1) and expanding substantially when fully clockwise(EX/+1).

LstnPress the ‘Lstn’ (listen) switch to audibly monitor thesignals that are triggering activation of the de-esser;this is the filter in the de-esser panel, visibly displayedin the graph in the 2U space alongside (seeGraphical display section). This provides the userwith more accurate control over de-essing, ratherthan struggling to hear the effect in a complex signal.

Graphical display

The de-esser graph, located below the compressordisplay, shows the de-esser’s compressor knee(above) as default. ‘Clicking’ on the graph with themouse will make it display the frequency response ofthe sidechain’s band pass filter (below). ‘Clicking’ againchanges back, and so forth.

Filters

The three switches below the de-esser section selectthe position of the filters, high and low pass (outer leftand right switches respectively) and parametric mid-band (middle switch), in the signal chain. Pressing onceilluminates the small yellow LED above the switch,indicating that the filter is sent to the sidechain of thecompressor. Pressing again illuminates the small greenLED below the switch, indicating that the filter is sentto the sidechain of the gate. Pressing a third timeilluminates the actual switch (red), indicating that thefilter is in the signal path. To de-activate the filter,simply press the switch a fourth time. As with theoriginal unit, all sidechain filtering occurs after theExternal Key input.

High and low pass filtersThe two dials on the left control the frequency of thelow pass (upper dial) and high pass (lower dial) filters.The low pass filter ranges from 1kHz to 20kHz, andthe high pass filter ranges from 20Hz to 400Hz.

Parametric mid filterThe two dials on the right control the gain (upper dial)and frequency (lower dial) of the parametric mid filter.These values range from –16dB to +16dB and 60Hz to600Hz (or 600Hz to 6kHz with ‘x10’ pressed),respectively.

x10Pressing the ‘x10’ switch multiplies the frequencyvalue on the dial by 10, making the frequency rangefrom 600Hz to 6kHz.

Graphical display and control

The graph in the second space from the bottom,above the gate’s graph, shows the response curve ofthe filters. The high and low pass filters’ curve is red

9

(with red crosses), whilst the parametric curve isyellow (with a yellow cross). Selecting and draggingthe crosses will change the value of the chosen filter.These values will be displayed in red at the base of therelevant dial.

Gate

Pressing the ‘Gate’ switch, situated at the bottomright-hand side of the section, inserts the Gate intothe signal path. The action of the gate can be visuallymonitored on the bar graph, positioned next to thecompressor bar graph in the I/O section.

ThrshThe ‘Thrsh’ (threshold) dial determines the level atwhich the gate opens (or at which gain reductionfinishes when in Expander mode). The higher thethreshold, the more low-level noise is reduced, andthe more extreme the effect. The dial ranges from–62dB to –12dB.

RngeThe ‘Rnge’ (range) dial determines how much thesignal is attenuated when the gate is closed. This canbe set to cut (80dB attenuation, fully clockwise) or tomore gently lessen attenuation (min 0dB, fullyanticlockwise). Maximum attenuation may give anunnatural sound, so keep range at a low value unless itis essential to reduce high levels of background noise,or unless an obviously gated effect is desired.

HoldThe ‘Hold’ dial controls the variable delay before thegate release starts. This allows the gate to be heldopen until the signal has decayed sufficiently, so that arapid onset of gain reduction isn’t noticeable.Alternatively, the signal can be deliberately truncated

before its natural end to create a special effect. Thedial ranges from 20milliseconds, fully anticlockwise, to4 seconds, fully clockwise.

RelThe ‘Rel’ (release) dial sets the rate at which the gateattenuation increases, fading out the signal. Thisrelease period begins as soon as the signal dropsbelow the threshold. On transient signals, a fastrelease will be appropriate (rotate anticlockwise), butwith other material, a slower release (rotateclockwise) may give a more natural sound. Ideally therelease needs to be slightly slower than the naturaldecay rate of the signal to avoid audibly cutting itshort. The release time varies from 0.1 to 5 seconds.

FastPressing the ‘Fast’ switch makes the gate open morerapidly, once the source signal has risen above thethreshold. This faster response may be necessary onsome signals to avoid “missing” an initial transient, butwhich could also introduce an undesirable click onsmooth, sustained sounds when using a high thresholdsetting.

ExpandPressing ‘Expand’ causes the gate to function as anexpander, which has a similar effect to gating but,instead of cutting off any signal below the threshold, itproportionally decreases it.

KeyPressing the ‘Key’ switch sends the signal routed tothe key input to the sidechain of the gate. Either aninterface channel or bus can be assigned by clicking onthe Key input block, located on the generic plug-inborder.

Key LstnThe ‘Key Lstn’ switch enables the Key input to beaudibly monitored.

Graphical display and control

The graph at the base of the 2U strip displays thegate’s threshold (upper cross) and range (lower cross)values. By ‘clicking’ and dragging the crosses, theseparameters can be modified. On doing so, the exactvalues are displayed in red under the relevant dial.

10

DSP Requirements

The number of Forte plug-ins you can use at one timedepends on how much DSP power is available in yoursystem. Since the TDM hardware on Pro Tools cardsprovides dedicated DSP for real-time TDM plug-inssuch as Forte, plug-in performance isn’t limited byCPU processing power.

The table below shows the total number of instancesof Forte that can be powered by a single DSP chip onPro Tools|HD and HD Accel cards.

NOTE - The table shows theoretical maximumperformance when no other plug-ins are sharingavailable DSP resources. You will typically use morethan one type of plug-in simultaneously.

Plug-ins used in multi-mono format on greater-than-stereo tracks require one mono instance per channelof the multichannel audio format. For example, amulti-mono plug-in used on a 5.1 format trackrequires six mono instances since there are six audiochannels in the 5.1 format.

Monitoring DSP UsageThe System Usage window (Windows > Show SystemUsage) shows how much DSP is available in yoursystem and how it is being used in the current ProTools session. For more information about DSP usageand allocation, see the Pro Tools Reference Guide.

Forte DSP Requirements

Maximum instances of Forte plug-in per DSP chip for an HD and HD Accel card at different sample rates

HD HD AccelPlug-in 44.1/48kHz 88.2/96kHz 176.4/192kHz 44.1/48kHz 88.2/96kHz 176.4/192kHz110 10 4 2 24 11 5130 4 1 0 9 4 2110:130 3 1 0 6 3 1130:110 3 1 0 6 3 1130c 15 7 2 35 16 7130c-stereo 12 6 2 29 14 6130c-LCR 10 5 2 24 11 5130c-Quad 9 4 1 21 10 4130c-LCRS 9 4 1 21 10 4130c-5.0 8 3 1 19 9 4130c-5.1 7 3 1 17 8 3130c-6.0 7 3 1 17 8 3130c-6.1 6 3 1 15 7 3130c-7.0 6 3 1 15 7 3130c-7.1 6 2 1 14 6 2

DSP Delays Incurred by TDM Plug-Ins

Virtually all TDM plug-ins incur some amount of signaldelay. If you are working with mono tracks, or areprocessing all channels with the same plug-in, thesignal delays are not long enough to be significant andshould not be a concern.

This signal delay is significant only if you use a plug-inon one channel of a stereo or multichannel signal butnot the others, since this can cause the channels to beslightly out of phase. Table 3 shows the delaysinherent in the Forte plug-in.

Channel Delay IndicatorThe Channel Delay Indicator in the Mix windowdisplays the total delay, in samples, incurred on thetrack from the use of any TDM plug-in on thatchannel.

To see the amount of time delay on a trackthat uses plug-in inserts.- In the Mix window, Control-click (Windows) orCommand-click (Macintosh) the track’s Volume

Indicator to toggle between Volume (“vol”), Peak(“pk”) and Channel Delay (“dly”) indications.

Compensating For DelaysIf it becomes necessary to compensate for plug-indelay, use the TimeAdjuster plug-in included with ProTools to offset other tracks, as appropriate. See theDigiRack Plug-Ins Guide or Pro Tools ReferenceGuide for more information on TimeAdjuster. For acomprehensive guide to calculating DSP-induceddelays, see the Pro Tools Reference Guide.

Forte DSP Delay

Samples of delay incurred by Forte

Plug-In Samples of Delay on HD Accel CardsForte 4